$119 Find Cheap Flights from Seattle to Massachusetts

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Massachusetts departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Massachusetts.
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Cheap Flights from Seattle to Massachusetts

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Boston1 stop$226
Albany
Albany1 stop$359
Boston
Boston1 stop$226
Albany
Albany1 stop$359

Book Cheap Seattle to Massachusetts Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Massachusetts that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Massachusetts

Tue, Apr 21 - Tue, Apr 28
Southwest Logo
6:00 am - 6:35 pm
SEA
-
BOS
9h 35m
1 stop
Southwest Logo
4:45 pm - 10:30 pm
BOS
-
SEA
8h 45m
1 stop
$226Southwest
Sun, Apr 19 - Tue, Apr 28
Southwest Logo
5:15 am - 10:05 pm
SEA
-
BOS
13h 50m
1 stop
Southwest Logo
6:20 pm - 12:10 am
BOS
-
SEA
8h 50m
1 stop
$231Southwest
Wed, May 20 - Tue, Jun 2
JetBlue Logo
11:30 am - 8:05 pm
SEA
-
BOS
5h 35mnonstop
JetBlue Logo
7:00 am - 10:15 am
BOS
-
SEA
6h 15mnonstop
$232JetBlue
Fri, May 1 - Tue, May 5
United Airlines Logo
1:07 pm - 11:59 pm
SEA
-
BOS
7h 52m
1 stop
United Airlines Logo
2:22 pm - 8:53 pm
BOS
-
SEA
9h 31m
1 stop
$242United Airlines
Thu, Apr 30 - Tue, May 5
United Airlines Logo
2:27 pm - 12:59 am
SEA
-
BOS
7h 32m
1 stop
United Airlines Logo
4:35 pm - 10:47 pm
BOS
-
SEA
9h 12m
1 stop
$247United Airlines
Wed, Apr 15 - Tue, Apr 21
Delta Logo
11:14 pm - 9:05 am
SEA
-
ALB
6h 51m
1 stop
Delta Logo
6:00 am - 10:32 am
ALB
-
SEA
7h 32m
1 stop
$359Delta
Thu, Apr 23 - Mon, Apr 27
American Airlines Logo
1:19 pm - 11:59 pm
SEA
-
ALB
7h 40m
1 stop
American Airlines Logo
7:21 pm - 12:36 am
ALB
-
SEA
8h 15m
1 stop
$379American Airlines
Wed, Apr 15 - Tue, Apr 21
American Airlines Logo
11:16 am - 11:59 pm
SEA
-
ALB
9h 43m
1 stop
American Airlines Logo
5:30 pm - 12:36 am
ALB
-
SEA
10h 06m
2 stops
$384American Airlines
Thu, Jul 9 - Mon, Jul 13
JetBlue Logo
11:41 pm - 10:25 am
SEA
-
ACK
7h 44m
1 stop
JetBlue Logo
12:02 pm - 9:05 pm
ACK
-
SEA
12h 03m
1 stop
$553JetBlue
Thu, Jul 9 - Mon, Jul 13
Delta Logo
11:53 pm - 1:27 pm
SEA
-
ACK
10h 34m
2 stops
Delta Logo
2:10 pm - 10:16 pm
ACK
-
SEA
11h 06m
1 stop
$662Delta
Booking Insights

KAYAK's insights & trends for Seattle to Massachusetts flights

Get data-powered insights and trends into flights from Seattle to Massachusetts to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Seattle to Massachusetts flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Massachusetts from Seattle found in the last 72 hours was to Boston, at $182 round-trip. The most popular route is from Seattle (SEA) to Boston (BOS), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $182.

What is the cheapest time of day to fly to Massachusetts?

The average price for all round-trip flights from Seattle to Massachusetts depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Massachusetts is generally in the afternoon, when round-trip flights cost $232 on average. Morning departures are around 18% more expensive than evening flights, on average. The most expensive time of day to fly to Massachusetts is generally in the morning, which is peak travel time and where the average cost of a ticket is $430.

Can I save money by flying with a layover from Seattle to Massachusetts?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $374, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Seattle to Massachusetts?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Massachusetts, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Massachusetts is September, when tickets cost $307 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $535 and $417 respectively.

What’s the cheapest day of the week to fly from Seattle to Massachusetts?

The average price of all round-trip flights from Seattle to Massachusetts clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seattle to Massachusetts, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Massachusetts, Wednesday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from Seattle to Massachusetts?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Massachusetts, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Massachusetts, you should book around 4 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$119
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Seattle to Boston

Flights from Seattle to Massachusetts: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Seattle to Massachusetts 
rsmrostovFlew with Alaska Airlines
SEA
-
BOS
Jan 2026
If you have a small personal bag and a personal item you will be hustled to consolidate snacks on the flight of very poor so bring your own food and if you have an Android phone you likely will have issues connecting to Wi-Fi on the plane especially if the connection was dropped in the middle of watching a movie and then you attempt to reinstate it sometimes you have to clear browsing history and cookies becomes painful
Verified travelerFlew with Alaska Airlines
SEA
-
BOS
Jul 2024
Generally Alaska Airlines have very friendly and helpful people in my experience. They don’t have TVs in all planes so make sure to download their app if you want entertainment on the plane.

FAQs - booking Massachusetts flights

  • How does KAYAK find such low prices on flights from Seattle to Massachusetts?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Massachusetts.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Massachusetts?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Massachusetts?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Massachusetts with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Massachusetts?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Seattle to Massachusetts

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Massachusetts. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Massachusetts? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12051 reviews
7.8Comfort
8.5Crew
7.0Entertainment
8.1Boarding
7.1Food
Airline reviews

Never got on because the airline sent the WRONG plane to take us on our first leg of the trip so we missed ALL connecting flights. No help available from anyone at the airline…

2.0 MediocreAnonymous, Mar 2026
SEA - MSP
Read more Alaska Airlines reviews

Never got on because the airline sent the WRONG plane to take us on our first leg of the trip so we missed ALL connecting flights. No help available from anyone at the airline…

The crew inside the airport for Alaska was rude, lazy and incompetent

The flight was extremely smooth, and so was the landing. Great piloting.

Plane was clean, staff was professional and flight was on time. No built in tv was still ok, as programs were offered that could synch to smart phones.

J was in the ER x 3...3 protruding discs...contacted Alaska many many days prior to cancel and request a refund or a credjt.. they only gave me 50 % credit....outrageous seeing how i have a doctors letter....just plain inhuman. AI sucks!

The flight was too short. No snacks or drinks offered.

The flight attendant was friendly and attentive. Although our interaction was brief—- it made a difference. The crew was upfront about turbulence. I like the Maui pretzels.

Everything was good. Please have a wheat free option for snacks in the future.

They are always so great! Friendly, on time if not early, organized boarding process. Great price too.

Crew very courteous. Boarding was great. Slow to get baggage at Denver.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

First flight out and was 85 minutes delayed. Notification came out way too late

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

It was delayed but other than that it was great.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

A 12 hour flight during the day with one real meal service - are you kidding? Also the breakfast was one of the worst and not what was listed

Advertised fruit trays with cheese, but only snacks handed out!

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

There was no wifi available at any price -- the plane did not have wifi equipment. Movie choices were blah - hits from the past; nothing recent. The food was blah airplane food. They should have had Mai Tai drinks available as per the Hawaiian Airlines magazine, but they had none onboard.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

My check in was stressful. I somehow lost my seat from my original booking, the plane showed no availability/no seat when it was time to check-in. I called and was instructed to try to get a seat at the airport. I asked if it was a full flight and the travel agent said the site showed some seating but was not able to secure one for me. Why not? On my way to the airport the app finally revealed one available seat towards the back of the aircraft that I was able to book. It ended up being an overbooked flight, so glad I wasn't stuck.

Flights with JetBlue from San Diego to Boston are a miserable experience. The flight was delayed about 1.5 hours due to “weather” supposedly but the flights for other airlines left on time so it just have been some kind of weather that only affects JetBlue. I had a small carry on - purse. The crew stored it in a bin 2 rows down from me because they were using the bin next to my seat for other people’s stuff. The TV screen in the emergency row seats does not work. It just was awful from start to finish. When we landed, we had to sit inside the plane for a very long time because the plane had to be moved to a different gate.

They made me check my bag and I didn't need to as there was overhead space available. I paid for a seat towards the front of the plane and it didn't recline. I requested a refund and they declined to give me one.

I have to congratulate Kayak (and Dylan the Chatdeal agent) because because when we decided extended our trip in Florida by two days, there were many direct flights oprions back to Boston available on the Friday we wanted to fly on the JetBlue website, but once I canceled the original JetBlue flight on their website, those direct return options disappeared immediatley! I think it's a game JetBlue plays. . Luckily, I checked Kayak and they had a direct flight that wasn't appearing on JetBlue's website and so I booked it, and we were able to fly home direct through the Kayak booking when JetBlue was offering nothing (even though I have been a True Blue member for 20 years, and also am a Mosaic member). So much for loyalty- their algorithm for booking is like a shell game. JetBlue used to be a good company but now they're worse than anyone. Also I was originally booked this trip to Florida, two months before the departure date, I booked the trip on JetBlue's website and then after the payment part, they said there was a problem and that I needed to do the booking again, so when I immediately went to rebook , the price had gone up 30%! I called them and it sounded like they had heard this so many times before and the guy told me to check back in 10 minutes and the price would be back to where it was when I was booking- it but it never was. How could the price go up 30% in one minute two months before the flight???? They're playing a game with their customers. Anyways, I booked a cheaper flight then at a less convenient time. So fast forward two months the night before the 7 AM flight, they sent me an email at midnight when I was sleeping to let me know that my flight at 7 AM had been canceled. The only thing they offered was a flight that night from from a different airport (Providence) to a different airport in Florida (West Palm Beach) or a flight two days later. No compensation, nothing. They couldn't of tried to get another plane to the Boston airport? They had all night to do it. I passed on their ridiculous options and flew with Delta and it was a great experience. Of course, I had to pay a lot more booking on the same day, but JetBlue doesn't care. I put in a lengthy complaint with the agent who assured me someone would get back to me by email within three days and I haven't heard a thing. JetBlue used to be a good company but now they're among the worst. The only thing they still have is decent legroom, but the corporate bean counters will probably start taking that away too.

We were made to wait in the airport for six hours for a flight that was ultimately canceled.

Both flights were significantly delayed. The flight experience itself was great.

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

The crew for the flight was A+ top notch. They were friendly and professional and made the flight a very relaxing and enjoable.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

We had a male flight attendant who was super attentive and wonderful! Very professional. I have both gluten and dairy intolerance, and was only able to get a gluten free part, and not the dairy free part of the meal. Easy to order ahead of time and I appreciate being able to do that.

Everything you need to know for your flight from Seattle to Massachusetts

Information on your arrival and departure airports